Just got 2 codes belive 23 is maf sensor and 32 is a/f sensor are these linked problems also where is the a/f sensor located and where is the best place to buy these from.

 

Yes the 2 could well be connected, the Mass AirFlow sensor (outlet from the airbox) measures airflow and the ECU uses this to calculate fueling, the fueling is then measured by the Oxygen sensor, if the 2 don't match its not always possible for the ECU to know which is at fault, or both could be fine and you could have an airleak between maf sensor and engine!

Simon